Machine for separating ores.



1. M. STADEL. NIACHINE FOR SEPARATING ORES.

APPLICATION FILED 1UNEI5|I918.

Patented Nov. 26, 1918.

. ond pulley 38 power is length of the middle the table. Wing Walls 3 to the ends ot' this sharp edge which hasl end and side` vvalls B1, and 33, as vvell as a. laterally extended portion whereby material collected troni the. table is delivered into a trough-like structure 34 leading to any desired rectmtacle (not shown) at one side of the separator. The Wire; Walls 30 are continued under the skinf ier plate 17, 'belovv which the table` terminates in an apron 1S, delivering into a, concentrator trough 19 inclined at an angle ot about 30 to the horizontal .fo as to receive Water and solid material. carried thereby from the table This trough has a series ot transverse rii'lles Q0 arranged in the customary manner l'or catching` and retaining relatively heavy and usually or particles while permitting the gangue, etc., to pass oil.

In any suitable position such as upon the back structure 21, I mount a tank 35 for the reception of oil to be delivered to the machine. This tank is connected through a valved conduit 35 with the container 13 which is also supplied with Water through an inlet pipe 37.

Under conditions of operation, oil or other equivalent liquid .is delivered ata slow rate from the tank 35 through the pipe 36 to the mixing container 13 which is sup plied with vvater through the pipe 37. The brush-carrying :hatt 8 is turned by power applied to the pulley 9 and through a sectransmitted through 40 on-the shaft so a belt 39 to a pulley that the paddles carried by the latter opcrate to thoroughly mix the oil and Water in the container 13. The flow of water and the action of these paddles such that. the mixture of oil and Water is constantly delivered to the top of the table Q over which itiiows in a` continuous sheet consisting of a layer of Water completely Vcovered by a film or layer of oil. The brush 11.

turned by the mechanism above described.

in the direction indicated by the arrow, Fig. 1, and pulverized ore from the hopper 10, passes through the delivery opening thereof onto the plate 12 and under the brush 11, which sprays it outivardly so that it falls with substantial uniformity over the sheet of liquid flowing downwardly over the table 2. Any clogging of the de livery opening of the hopper is effectually prevented by the continued reciprocation of the fingers 5 therein which also act to cause the finely divided material to be evenly delivered t0 the full, length ot the plate 12.

I have discovered that under the conditions above noted, the layer of oil on the sheet of Water fiowingilownwardly over the table 2 Will retain the `finely divided metals and more particularly the.' finely divided sand, etc.,

valuable nuggets I my invention,

Leccese gold ;.vv iich it has' been extremely diliicult in the,y ast to recover, 'whereas the sand and otherv lrelatively 'worthless material pass through the oil 'film into and through the body of Water.

The heioht of the sharp edge 1T ot the skimmer above the top surface of the table '2 and the rate ot flou' ot liquid over theI latter are such that said edge skims or .l s the oil with the solid material which it carries from the top surface of the deepened body of material directed toward it by the converging side Walls, delivering it to the' trough Z1 and thence to any desired receptacle.

passes under delivered over the apron 18 to the top of' the concentrating trough 19, vhere any small iniggets or bodies of precious metal too heavy to be retained the oil iilin, are caught and retained by the rililes 20, while the water and gangue pass out 'ot the louf'r end. 'l` he oil is separated from the solid nnaterial carried thereby in any desired-inanner known to the art as by centrifuging, and from time to time the valuable material gathering above the riilles is collected.

It is to be particularly noted that because of the thorough mixture of the oil and .vater and of 'the manner ot' its delivery trou. the container 13.. the liquid sheet liou'ing down over they top ot the table at all times consists ot a layerot' water with a complete cover ot oil over the samevivhile by reason of the ore delivery mechanism cn'iployed, the pulverized ore under treatment talle upon auch liquid sheet in a uniform spray so that the possibility of its entering the lattesl in large or eoinpact'masses which would obviously not be acted on in accordance with l is eteetually prevented.

By the use ot the skimmer illustrated, the oil with the valuable material carried thereby is completely separated from the vater and the relatively valueless solid substances therein ',--it being noted that while the body of the table receiving the pulverized ore trom the brush is relatively *Wide to assure ot the certain contact ot. all of the ore particles with the oil, he narrowing of the liquid body at the lower end of the table gives it depth which permits ofy the effectual separation of oil Jvvith its contents 'from the Water and gangue. .f

1. The combination in an ore of an inclined table; means for delivering to the upper part thereof liquids of different specific gravities; an o re hopper; a rotary brush mounted, to receive pulverized ore from the hopper `'and deliver it in the form of a spray of solid particles to the liquids on the table; a skimmin device mounted at the lower end of the talige in position to separate the upper layer ot' liquid with its conseparator of dillerent specific en inclined lied;

Lasagne tained solid material from Athe liquid; and a conduit :for ythe reception of 'the liquid collected by the skimmer.

2. The combination of a container having an inclined hed; a device for mixing liquids gravities positioned to discharge the mixed liquids in a sheet over Asaid hed; a device for spraying puiverized ,ore on the hed; and a'conduit having an inlet provided with a relatively Shar edge extending transversely of thel bed at the llower portion thereof in position to receive and separate the upper layer of liquid flow-- ing: on the hed from the balance thereof.

3. The erfinhinetionof a container having el l hed; means yfor delivering oil .ind eater to the upper portion of said bed; 'L i fr dverized ore; a .rotary brush il, upper end of tile hed in posiore from the hopper and de- `n spray to the liquid on the bed; device mounted at the lower end conduit for receiving the skimming device. The combination of a container having inclined leed; a mixing chamber mounted 'the pper end of said container nl posi- 'tic4` livr liquid thereto in the form of a l erimeans for dehvering oil and Water n ning chamber; the mixing; chamber;

an agitating device means for deliversprny or' inelv divided ore to the Bowf'iuid on the hed of the container; and vrnnirng' device at the lower end of the 5. The combination of a container having a device for delivering oil the balance of the hopper; a rotary brush receiving material from said plate and positioned to'deliver the same nthe form of a. spray to the hed of the container; with a skimming device at.the lower end of the container. 6. The combination of a container havin an inclined bed; means .fordeliveri o1 and water to the upper portion of saidA d; a hopper having a narrow outlet elongated transversely of the plate under seid outlet; an ere agitatin vice operative adjacent the outlet o hopper to distribute the material therefrom upon the plate; the plate and positioned tc spray material therefrom over the bed of the container; and a device at thelower part of-the container for separating the oil with its contained solid material from the water. r

he combination ci a. container havin an inclined bed; means for delivering a. sheet of superposed oil and part of the container; pulverized ore upon the sheet of flowing liquid; a deliver trough having an inlet provided with a 'relatif/ely sharpv edge extending transversely 'of the lower portion of the bed of the container and of a, length lea than the width ofthe bed; 'with wing walls` In witness whereof I ailx m si ature. ITAIEL JOHN M.

in position to rel container; .a delivery the arotary brush 'operative en means for spraying 

